Improvement in offiain-cleaners



dimitri gaat@ JACOB STRG-OP, OUF

JoLInT, IL,L1No1s.

Lette/rs Patent No. 96,630, dated Nozamber 9, 1869.

IMPROVEMENT IN The Schedule' referred to in these Letters-Patent and making pareof the sannev Be it known that I, JACOB SROOP, of the city of Joliet, in Will county, and State of Illinois, have invented a new and useful Improvement von a Grain- Cleaner;4 and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the annexed drawings, making a' part of this specification, in which- Figure 1 is a perspective view of the machine;

Figure 2, a vertical section throughl the centre of said machine;

Figure 3, a plan view on the top ofthe upper burr;

Figure 4, a plan view on the bottom of the same;

Figure 5, a plan view on the top of the lower burr;

Figure 6, a cross-sectional view ofthe inner ring of the upper burr;

' Figure 7, like view of the outer ring 'of the upper burr;

Figure 8, a cross-sectional viewof. the face-plate of themiddle trough of the lower burr; v

Figure 9, a like view of the thee-plate of the outer trough of the lower burr; and

Figure 10, a like view of oneof the teeth on said plates.

` My invention consists in the construction oi a machine for rubbing and cleaning grain, and the construction aud operation of which, l will now proceed to explain.

c isfa frame, constructed of suitable pieces of .timber, trained togetherin the manner substantially' as shown in fig. 1, with keys h to raise and lower the cross-pieces c, in the manner hereinafter described.

F is a ease, resting in thev tramel c, in which case are two burrs, the one in tig. 5, which is stationary, forming the bed, and 'the one shown in figs. and 4, the upper burr, which is attached to the spindle, with which its face' is at right angles.

The spindle A rests upon the cross-piece D in the step R, in which it revolves, while the upper end is held in place by a box in the cross-har I.

The upper burr is constructedV with four radial arms, fm, to which are attached two concentric rings, 5, g. 2.

The inner ring presents a fiat face to the lower burr, and they outer ring, acrcular face, as shown in tie. 2. .These rings are faced with' metal, cast in sections, and vbolted to the face of the burrs, as shown-in figs. 4 and`5, which metal facings have triangular or V- shaped teeth or projections, as shown in' said figures, also iu figs. 6 and 7 Fig. 6 is a cross-sectional v iew of the inner ring, with theinetal faceattaehed, by means of a bolt passing through, and tig. 7 is a cross-'sectional viewof the outer ring, with itslnctal face.

'lhe lower burr'is divided into three annular com' centric troughs, by means of the partitions Syslwul in figs. 2 and 5, into the two outer ones of whieh,' t he I u are flights, attached tothe lower side of the upper burr, radiating from the main shaft A, as shown in figs. 2 and 4, and travel in the trough 1.

in figs 2, 8, and 9, cast in sections, and fastenetlby means of screws passing through, as shown.,

, AThese plates have triangulaior V-shaped projections or teeth, the same as those on the plates of the opposite direction.

The operation 'of' the machine' is substantially follows:

The grain is let into the; spout K, down into the circular trough 1, from whence it is carried around by theights u, figs. 2 and 4, and throughinto the circular trough 2,through the opening fu, tig. 5, where it is carried around and operated upon by the teeth or projections on the rings of "the upper burr, as itrevolves, (the burr being so set as not to grind or break the kerneh) and is finally thrown into the outer circular trough, by thc centrifugal force of the upper burr, through the opening w, g. 5, and is finally discharged through the discharge-spout lr, and leaves the machine.

centre ot' the trough, in a" great degree, causing the grain to rnb hard together,producing friction to cle tu itself better than if the grain were distributed over tie entire surface ot' the burr or trough. l It is in this keeping of the grain together, to pro- -duce a friction of its own, that my invention consists, which I find can best 'be accomplished by burrs, constructed with suoli faces, as is shown. TheA partitions 8 are used so asV to cause the'grain' to travel a greater distance, and, consequently, get a more thorough rubbing, and maybe multiplied, as the case may require.

The outer ltrough is made circular in the bottom, to gather the grain more rapidly, so that it will discharge quicker than if it were flat.

The whole machine is driven by means of a baud on the pulley S.

4Having .thus describedmy invention,

What I claim as new, and desire to secureby Letters Patent, is as follows:

3, 4, and 5, with metal plates, having triangular teeth or projections, constructed, operating, and arranged substantially as described.

2. The annular partitions 8 8 on the Iburr P, operating and arranged as and for the purposes' set forth. JACOB STROOP.

F. L. CAGWJN,

annular rings 5 revolve, as shown iu iig. 2.

WM. HAR oon.

The lower burr P is faced with metal plates, shown' upper burr, with the exception that they point in the its [t will be seen, that by having the teeth set in op- .posite directions, thus the grain is kept' in the' 1. The lining or facing the burrs,' shown in figs. 2, 

